diff options
| -rw-r--r-- | gdb/ChangeLog | 9 | ||||
| -rw-r--r-- | gdb/symfile.c | 265 |
2 files changed, 152 insertions, 122 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 6d05ed1..a36e315 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,12 @@ +2002-01-15 Michael Snyder <msnyder@redhat.com> + + * symfile.c (generic_load): Use bfd_map_over_sections method + instead of manipulating bfd structure members directly. + (add_section_size_callback): New function, bfd sections callback + used by generic_load. + (load_sections_callback): New function, bfd sections callback + used by generic_load. + 2002-01-15 Elena Zannoni <ezannoni@redhat.com> [Based on work by Jim Blandy] diff --git a/gdb/symfile.c b/gdb/symfile.c index 461b800..7043b80 100644 --- a/gdb/symfile.c +++ b/gdb/symfile.c @@ -1174,19 +1174,139 @@ load_command (char *arg, int from_tty) static int download_write_size = 512; static int validate_download = 0; +/* Callback service function for generic_load (bfd_map_over_sections). */ + +static void +add_section_size_callback (bfd *abfd, asection *asec, void *data) +{ + bfd_size_type *sum = data; + + *sum += bfd_get_section_size_before_reloc (asec); +} + +/* Opaque data for load_section_callback. */ +struct load_section_data { + unsigned long load_offset; + unsigned long write_count; + unsigned long data_count; + bfd_size_type total_size; +}; + +/* Callback service function for generic_load (bfd_map_over_sections). */ + +static void +load_section_callback (bfd *abfd, asection *asec, void *data) +{ + struct load_section_data *args = data; + + if (bfd_get_section_flags (abfd, asec) & SEC_LOAD) + { + bfd_size_type size = bfd_get_section_size_before_reloc (asec); + if (size > 0) + { + char *buffer; + struct cleanup *old_chain; + CORE_ADDR lma = bfd_section_lma (abfd, asec) + args->load_offset; + bfd_size_type block_size; + int err; + const char *sect_name = bfd_get_section_name (abfd, asec); + bfd_size_type sent; + + if (download_write_size > 0 && size > download_write_size) + block_size = download_write_size; + else + block_size = size; + + buffer = xmalloc (size); + old_chain = make_cleanup (xfree, buffer); + + /* Is this really necessary? I guess it gives the user something + to look at during a long download. */ +#ifdef UI_OUT + ui_out_message (uiout, 0, "Loading section %s, size 0x%s lma 0x%s\n", + sect_name, paddr_nz (size), paddr_nz (lma)); +#else + fprintf_unfiltered (gdb_stdout, + "Loading section %s, size 0x%s lma 0x%s\n", + sect_name, paddr_nz (size), paddr_nz (lma)); +#endif + + bfd_get_section_contents (abfd, asec, buffer, 0, size); + + sent = 0; + do + { + int len; + bfd_size_type this_transfer = size - sent; + + if (this_transfer >= block_size) + this_transfer = block_size; + len = target_write_memory_partial (lma, buffer, + this_transfer, &err); + if (err) + break; + if (validate_download) + { + /* Broken memories and broken monitors manifest + themselves here when bring new computers to + life. This doubles already slow downloads. */ + /* NOTE: cagney/1999-10-18: A more efficient + implementation might add a verify_memory() + method to the target vector and then use + that. remote.c could implement that method + using the ``qCRC'' packet. */ + char *check = xmalloc (len); + struct cleanup *verify_cleanups = + make_cleanup (xfree, check); + + if (target_read_memory (lma, check, len) != 0) + error ("Download verify read failed at 0x%s", + paddr (lma)); + if (memcmp (buffer, check, len) != 0) + error ("Download verify compare failed at 0x%s", + paddr (lma)); + do_cleanups (verify_cleanups); + } + args->data_count += len; + lma += len; + buffer += len; + args->write_count += 1; + sent += len; + if (quit_flag + || (ui_load_progress_hook != NULL + && ui_load_progress_hook (sect_name, sent))) + error ("Canceled the download"); + + if (show_load_progress != NULL) + show_load_progress (sect_name, sent, size, + args->data_count, args->total_size); + } + while (sent < size); + + if (err != 0) + error ("Memory access error while loading section %s.", sect_name); + + do_cleanups (old_chain); + } + } +} + void generic_load (char *args, int from_tty) { asection *s; bfd *loadfile_bfd; time_t start_time, end_time; /* Start and end times of download */ - unsigned long data_count = 0; /* Number of bytes transferred to memory */ - unsigned long write_count = 0; /* Number of writes needed. */ - unsigned long load_offset; /* offset to add to vma for each section */ char *filename; struct cleanup *old_cleanups; char *offptr; - bfd_size_type total_size = 0; + struct load_section_data cbdata; + CORE_ADDR entry; + + cbdata.load_offset = 0; /* Offset to add to vma for each section. */ + cbdata.write_count = 0; /* Number of writes needed. */ + cbdata.data_count = 0; /* Number of bytes written to target memory. */ + cbdata.total_size = 0; /* Total size of all bfd sectors. */ /* Parse the input argument - the user can specify a load offset as a second argument. */ @@ -1198,13 +1318,13 @@ generic_load (char *args, int from_tty) { char *endptr; - load_offset = strtoul (offptr, &endptr, 0); + cbdata.load_offset = strtoul (offptr, &endptr, 0); if (offptr == endptr) error ("Invalid download offset:%s\n", offptr); *offptr = '\0'; } else - load_offset = 0; + cbdata.load_offset = 0; /* Open the file for loading. */ loadfile_bfd = bfd_openr (filename, gnutarget); @@ -1225,129 +1345,30 @@ generic_load (char *args, int from_tty) bfd_errmsg (bfd_get_error ())); } - for (s = loadfile_bfd->sections; s; s = s->next) - if (bfd_get_section_flags (loadfile_bfd, s) & SEC_LOAD) - total_size += bfd_get_section_size_before_reloc (s); + bfd_map_over_sections (loadfile_bfd, add_section_size_callback, + (void *) &cbdata.total_size); start_time = time (NULL); - for (s = loadfile_bfd->sections; s; s = s->next) - { - if (s->flags & SEC_LOAD) - { - bfd_size_type size = bfd_get_section_size_before_reloc (s); - - if (size > 0) - { - char *buffer; - struct cleanup *old_chain; - CORE_ADDR lma = bfd_section_lma (loadfile_bfd, s) + load_offset; - bfd_size_type block_size; - int err; - const char *sect_name = bfd_get_section_name (loadfile_bfd, s); - bfd_size_type sent; - - if (download_write_size > 0 && size > download_write_size) - block_size = download_write_size; - else - block_size = size; - - buffer = xmalloc (size); - old_chain = make_cleanup (xfree, buffer); - - /* Is this really necessary? I guess it gives the user something - to look at during a long download. */ -#ifdef UI_OUT - ui_out_message (uiout, 0, - "Loading section %s, size 0x%s lma 0x%s\n", - sect_name, paddr_nz (size), paddr_nz (lma)); -#else - fprintf_unfiltered (gdb_stdout, - "Loading section %s, size 0x%s lma 0x%s\n", - sect_name, paddr_nz (size), paddr_nz (lma)); -#endif - - bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size); - - sent = 0; - do - { - int len; - bfd_size_type this_transfer = size - sent; - - if (this_transfer >= block_size) - this_transfer = block_size; - len = target_write_memory_partial (lma, buffer, - this_transfer, &err); - if (err) - break; - if (validate_download) - { - /* Broken memories and broken monitors manifest - themselves here when bring new computers to - life. This doubles already slow downloads. */ - /* NOTE: cagney/1999-10-18: A more efficient - implementation might add a verify_memory() - method to the target vector and then use - that. remote.c could implement that method - using the ``qCRC'' packet. */ - char *check = xmalloc (len); - struct cleanup *verify_cleanups = make_cleanup (xfree, - check); - - if (target_read_memory (lma, check, len) != 0) - error ("Download verify read failed at 0x%s", - paddr (lma)); - if (memcmp (buffer, check, len) != 0) - error ("Download verify compare failed at 0x%s", - paddr (lma)); - do_cleanups (verify_cleanups); - } - data_count += len; - lma += len; - buffer += len; - write_count += 1; - sent += len; - if (quit_flag - || (ui_load_progress_hook != NULL - && ui_load_progress_hook (sect_name, sent))) - error ("Canceled the download"); - - if (show_load_progress != NULL) - show_load_progress (sect_name, sent, size, - data_count, total_size); - } - while (sent < size); - - if (err != 0) - error ("Memory access error while loading section %s.", - sect_name); - - do_cleanups (old_chain); - } - } - } + bfd_map_over_sections (loadfile_bfd, load_section_callback, &cbdata); end_time = time (NULL); - { - CORE_ADDR entry = bfd_get_start_address (loadfile_bfd); + entry = bfd_get_start_address (loadfile_bfd); #ifdef UI_OUT - ui_out_text (uiout, "Start address "); - ui_out_field_fmt (uiout, "address", "0x%s", paddr_nz (entry)); - ui_out_text (uiout, ", load size "); - ui_out_field_fmt (uiout, "load-size", "%lu", data_count); - ui_out_text (uiout, "\n"); - + ui_out_text (uiout, "Start address "); + ui_out_field_fmt (uiout, "address", "0x%s", paddr_nz (entry)); + ui_out_text (uiout, ", load size "); + ui_out_field_fmt (uiout, "load-size", "%lu", cbdata.data_count); + ui_out_text (uiout, "\n"); #else - fprintf_unfiltered (gdb_stdout, - "Start address 0x%s, load size %lu\n", - paddr_nz (entry), data_count); + fprintf_unfiltered (gdb_stdout, + "Start address 0x%s, load size %lu\n", + paddr_nz (entry), cbdata.data_count); #endif - /* We were doing this in remote-mips.c, I suspect it is right - for other targets too. */ - write_pc (entry); - } + /* We were doing this in remote-mips.c, I suspect it is right + for other targets too. */ + write_pc (entry); /* FIXME: are we supposed to call symbol_file_add or not? According to a comment from remote-mips.c (where a call to symbol_file_add was @@ -1355,8 +1376,8 @@ generic_load (char *args, int from_tty) loaded in. remote-nindy.c had no call to symbol_file_add, but remote-vx.c does. */ - print_transfer_performance (gdb_stdout, data_count, write_count, - end_time - start_time); + print_transfer_performance (gdb_stdout, cbdata.data_count, + cbdata.write_count, end_time - start_time); do_cleanups (old_cleanups); } |